PTS Wrap Up SBAs Flashcards
What is the diagnostic test for Addison’s disease?
SynACTHen test
Remember “…” for Addison’s
Lean, tanned, tired, tearful
Regular nebulised salbutamol is associated with…
hypokalaemia
Ramipril can cause…
hyperkalaemia
Cranial Diabetes Insipidus:
Hypothalamus doesn’t secrete enough ADH, but kidneys can still respond to ADH
Nephrogenic Diabetes Insipidus:
Kidneys are unable to respond to ADH, so can’t concentrate urine even when desmopressin is given
Acromegaly tests
- Serum IGF 1 1st line
- Oral glucose tolerance test is diagnostic
Symptoms of hyperaldosteronism
- Hypertension
- Excessive thirst
- Muscle cramps
- Fatigue
First line investigation for hyperaldosteronism?
Aldosterone Renin Ratio
Most likely cause of ACTH independent Cushing’s syndrome?
Iatrogenic - medication review and stop corticosteroids, eg. inhalers
What is a pheochromocytoma?
A tumour that secretes catecholamines derived from the chromaffin cells of the adrenal medulla
What is a phaeochromocytoma?
A tumour that secretes catecholamines derived from the chromaffin cells of the adrenal medulla
What is the pathophysiology of Graves’ hyperthyroidism?
TSH receptor autoantibodies activate TSH receptors - increased thyroxine and triiodothyronine
1st line treatment for diabetic ketoacidosis?
IV fluids then insulin therapy
What is the gold standard test for phaeochromocytoma?
Plasma free metanephrine (elevated)
What are some symptoms of Addison disease?
- Fatigue
- Weight loss
- Hyperpigmentation
- Salt craving
Signs/Symptoms of ketoacidosis?
- Excessive thirst
- Nausea and vomiting
- Fruity breath
- Weakness and fatigue
- Hypokalaemia due to excessive urination
Inferior leads:
II, III, aVF
Lateral leads:
I, aVL, V5, V6
Anterior/Septal leads:
V1-V4
What is the management for acute MI?
MONA - morphine, O2, nitrates, aspirin
O2 only indicated when SATS are below 94%
What drugs should be offered post-MI?
- Ace-i or ARB - Ramipril or Candesartan
- Beta blocker - Propanolol
- Statin - Atorvastatin
- Dual antiplatelet - Aspirin and Clopidogrel
ABCDE X ray findings in Heart Failure?
Alveolar oedema
Kerley B lines
Cardiomegaly
Dilation of UPPER lobe vessels
Effusions
ST elevation?
Prinzmetal angina
STEMI
Pericarditis
ST depression?
Unstable angina
NSTEMI
CHA2DS2VASc
Stroke risk for patients with AF
HAS-BLED
Risk of bleeding in patients on anticoagulation
QRISK3
Risk of a major CVA in next 10 years
Well’s Criteria
DVT risk
FRAX
Risk of fracture
What is the first line investigation, especially in primary care for heart failure?
BNP / NT-proBNP
Then ECG, Echo and CXR
ARD Fall
Aortic Regurgitation
Diastolic Decrescendo
ASS Bump
Aortic Stenosis
Systolic Crescendo / Decrescendo
MSD You
Mitral Stenosis
Diastolic Decrescendo / Presystolic Crescendo
MRS Through
Mitral Regurgitation
Pan systolic murmur
What is the best test for aortic stenosis diagnosis?
Trans thoracic doppler echocardiogram
Anaphylaxis Treatment?
- ABCDE
- Check diagnosis
- Call for help
- IM Adrenaline 500mg of 1:1000
- High flow O2
What is pericarditis?
Inflammation of the pericardium (the membrane that surrounds the heart)
What is Dressler syndrome?
Pericarditis occurring as a complication of MI, 2-3 weeks after the attack
What is endocarditis?
Inflammation of the heart valves
Which valve is usually affected in endocarditis?
Tricuspid as this is the first valve blood passes through after the systemic circulation
Signs/Symptoms of endocarditis?
- Fever
- Murmur
- Roth spots
- Janeway lesions
- Osler’s nodes
Causes of microcytic anaemia?
- Iron deficiency
- Thalassaemias
Causes of normocytic anaemia?
- Anaemia of chronic disease
- Renal disease
- Acute blood loss
Causes of macrocytic anaemia?
- B12 deficiency
- Folic acid deficiency
- Liver cirrhosis
- Bone marrow disorders
What is the MCV for microcytic anaemia?
<80 fL
What is the MCV for normocytic anaemia?
80-100 fL
What is the MCV for macrocytic anaemia?
> 100 fL
How is B12 absorbed?
B12 binds to intrinsic factor which is produced by the parietal cells of the stomach, it is then absorbed in the terminal ileum.
Pathophysiology of pernicious anaemia?
Parietal cells of stomach are attacked by immune system. This results in atrophic gastritis and the loss of intrinsic factor production
What is hereditary spherocytosis?
Defects in red cell membrane that cause the surface area to volume ratio to decrease and the cell to become more rigid and less deformable than normal RBCs
Symptoms of hereditary spherocytosis?
- Anaemia
- Jaundice
- Splenomegaly
What would the blood film look like in a patient with beta thalassaemia?
Large and small irregular hypochromic erythrocytes
What are the features of multiple myeloma?
Old CRAB
- Typically presents over 70 yrs of age
- Hyper calcaemia
- Renal impairment
- Anaemia
- Bone lesions - Back pain, pepper pot skull
What would show on a bone marrow biopsy to confirm a diagnosis of acute myeloid leukaemia?
Auer rods
What may show on a blood film of patients with multiple myeloma?
Rouleaux formation
What plasmodium causes the most severe form of malaria?
P. Falciparum
Symptoms of TB?
- Persistent cough
- Weight loss
- Night sweats
- Fever
What is a typical symptom of malaria?
Fever that causes sweats and chills
Stage 1 Lymphoma
Cancer is contained to a single lymph node group
Stage 2 Lymphoma
Cancer is on a single side of the diaphragm
Stage 3 Lymphoma
Cancer is on both sides of the diaphragm
Stage 4 Lymphoma
Cancer has spread beyond the lymph nodes
A or B at the end of the Ann Arbor staging system?
B if the patient has “B type” symptoms - fever, night sweats, weight loss
Which leukaemia is commonest in children?
Acute lymphoblastic leukaemia
What is the treatment for chronic myeloid leukaemia?
Chemotherapy and tyrosine kinase inhibitor (imatinib)
What is haemophilia A?
Clotting factor 8 deficiency
What is haemophilia B?
Clotting factor 9 deficiency
What are the two types of secondary polycythaemia?
Compensatory and abnormal
Example of compensatory polycythaemia?
High altitude - in hypoxic conditions, kidneys produce more erythropoetin
Example of abnormal polycythaemia vera?
Tumour secreting erythropoetin
What is the first line investigation for acute pancreatitis?
Serum amylase
What is the first line treatment for autoimmune hepatits?
Prednisolone (Steroids)
What tests would you order for a diagnosis of autoimmune hepatits?
Investigative bloods - FBC and:
1. IgG
2. Anti smooth muscle antibodies - high level is indicative of autoimmune hepatits
What is primary sclerosing cholangitis?
Fibrosis destroying the intrahepatic and extrahepatic bile ducts
What is primary biliary cholangitis?
Inherited abnormality of immunoregulation leads to a T lymphocyte mediated attack on intrahepatic bile ducts
What is a diagnostic feature of primary biliary cholangitis?
Anti-mitochondrial antibodies (AMA)
What is a diagnostic feature of primary sclerosing cholangitis?
Beaded appearance of bile ducts on MRI / Endoscopic retrograde cholangiopancreatography
What diseases is primary biliary cholangitis associated with?
Other autoimmune disorders, eg. RA, Sjogrens
What disease is primary sclerosing cholangitis associated with?
- Ulcerative colitis
- Cholangiocarcinoma
What are some symptoms of primary biliary cholangitis?
- Jaundice
- Pruritus (Itching)
- Fatigue
- Irritable bowel
What colour urine / stools would you see in someone with pre-hepatic jaundice?
Normal urine, dark stools
What colour urine / stools would you see in someone with intra-hepatic jaundice?
Dark urine, normal -/ slightly lighter coloured stools
What colour urine / stools would you see in someone with post-hepatic jaundice?
Dark urine, pale stools
What is the first line treatment for alcohol withdrawal?
Chlordiazepoxide
What is the most common cause of liver cirrhosis?
Alcohol abuse
What is Charcot’s triad of ascending cholangitis?
Jaundice, fever, RUQ pain
What is the difference between the presentation of acute cholecystitis and ascending cholangitis?
Patients with acute cholecystitis will NOT HAVE JAUNDICE
What is Gilbert’s syndrome?
A disorder causing impaired conjugation of bilirubin due to decreased levels of the UDPGT enzyme
What is alpha-1-trypsin deficiency?
A condition where deficiency in alpha-1-trypsin causes elastase to break down elastin in the lungs and liver causing damage
What are some presentations of alpha-1-trypsin deficiency?
1.Dyspnoea
2. Hepatomegaly
What is median arcuate ligament syndrome?
A condition where the median arcuate ligament presses on the coeliac artery compressing it and causing pain
What does recent travel with chronic diarrhoea following an episode of diarrhoea abroad suggest?
Parasitic infection or tropical malabsorption
What is small intestine aspirate culture used for?
If bacterial overgrowth is suspected in the small intestine. This is more likely post intestinal surgery, or in motility disorders.
What can a small intestine biopsy be used for?
Diagnosis of parasite or villous atrophy suggesting tropical malabsorption
What are some red flag symptoms for gastro-intestinal cancer?
- Weight loss
- Anaemia
- Melaena
- Haematemesis
What is a common cause of dyspepsia and epigastric pain in adults?
H. pylori gastritis
What are symptoms of haemorrhoids?
- Fresh red blood and mucous in stool
- Itchy anus
- Soreness around the anus
What are symptoms of diverticulitis?
- Fresh red blood
- Vomiting
- Pyrexia
- Abdominal pain
What are the main differences between haemorrhoids and anal fissures?
- Haemorrhoids can present with mucus
- With haemorrhoids you may feel an external lump
What are some differences between small intestine obstruction and large bowel obstruction?
Small bowel obstruction usually occurs with vomiting before constipation because it is more proximal in the tract
What are 5 red flags for GI Cancer?
- Unexplained weight loss
- Family history
- Rectal bleeding / melaena
- Anaemia
- Rectal or abdominal mass
What is haemochromatosis?
An inherited disorder of iron metabolism
What are the most common antibiotics that cause C.diff?
- Clindamycin
- Co-amoxiclav
- Cephalosporins
- Penicillins
- Quinolones
What is the treatment for C. diff?
Vancomycin
What is the first line investigation for coeliac?
tTg - IgA antibodies
What is the gold standard investigation for diagnosis of coeliac?
Endoscopy with duodenal biopsy
What are some biopsy signs of coeliac disease?
- Villous atrophy
- Crypt hyperplasia
- Intraepithelial lymphocytosis
What is a Mallory-Weiss tear?
A mucosal tear at at the gastro-oesophageal junction, occuring due to a sudden increase in intra-abdominal pressure
Name 4 causes of gastric ulcers
- NSAIDS
- Haemodynamic shock
- H. pylori infection
- Stress
What are some symptoms of diverticulitis?
Similar to appendicitis but on the other side
1. Fever
2. Lower left quadrant pain
3. Nausea
4. Abdominal distension
What is the gold standard diagnostic investigation for acute diverticulitis?
Contrast CT colonography
What are some red flags symptoms of oesophageal cancer?
- Weight loss
- Bleeding
- Anorexia
- Vomiting
- Lymphadenopathy
- PROGRESSIVE dysphagia
Would a sudden onset dysphagia of solids and liquids indicate oesophageal cancer?
NO - in oesophageal cancer the dysphagia would start with initial difficulty swallowing solids then progress. Rapid onset dysphagia indicates a benign disease
What is the issue with oesophageal cancer diagnosis?
By the time it is found it is often extremely advanced because most patients have no symptoms or signs for a while
What are some signs of chronic liver disease?
- Clubbing
- Palmar erythema
- Spider naevi
- Dupuytren contracture
- Pruritus
What is the most common cause of oesophageal varices in the UK?
Liver cirrhosis
What tumour marker is raised in testicular cancer?
Alpha feto protein and B-hCG
Name 5 thing that can cause a raised PSA (Prostate specific antigen)
- Prostate cancer
- Benign prostatic hyperplasia
- Prostatitis
- UTIs
- Older age
What is the diagnostic investigation for bladder cancer?
Cystoscopy
What staging system is used for colorectal cancer?
Dukes
What staging system is used for prostate cancer?
Gleason
What staging system is used in liver cirrhosis?
Child-Pugh
What staging system is used in gynaecological cancers?
FIGO
What staging system is used in lymphoma?
Ann Arbor
What staging system is used for most cancers?
TNM
What are some complications of polycystic kidney disease?
- Increased risk of brain aneurysm
- Liver cysts
- Chronic pain
- Mitral valve prolapse
- DIverticula in the colon
What is Goodpasture’s syndrome?
A type 2 hypersensitivity reaction where antiglomerular basement membrane antibodies attack type 4 collagen in the lung alveoli and glomerulus
What are some signs of nephrotic syndrome?
- High levels of anticoagulants
- Hypoalbuminaemia
- Proteinuria
- High serum triglycerides
What are some signs of nephritic syndrome?
- Haematuria
- Hypertension
- Temporary oliguria
- Uraemia
What is GFR category G1?
> = 90
What is GFR category G2?
60-89
What is GFR category G3a?
45-59
What is GFR category G3b?
30-44
What is GFR category G4?
15-29
What is GFR category G5?
<15
What is AKI stage 1?
Increased serum creatinine 150-200%
Urine production <0.5ml/kg/hr for 6-12 hours
What is AKI stage 2?
Increased serum creatinine 200-300%
Urine production <0.5ml/kg/hr for 12-24 hours
What is AKI stage 3?
Increased serum creatinine 300%+
Urine production <0.5ml/kg/hr for 24+ hours or anuria in 12 hours
What is minimal change disease?
Damage to the glomeruli - the most common cause of nephrotic syndrome in children
What 6 factors make a UTI “complicated”
- Males
- Pregnant people
- Children
- Recurrent
- Elderly
- Patient’s with abnormal urinary tract or systemic disease that involve the kidney
What is the treatment for Chlamydia Trachomatis?
Azithromycin or doxycycline
What is the treatment for Neisseria Gonorrhoea?
Azithromycin and ceftriaxone
What are some symptoms of pyelonephritis?
- Loin pain
- Severe headache
- Fever
- Pyuria
What is the first line treatment for benign prostatic hyperplasia?
Alpha blockers
What do alpha blockers do in the treatment of BPH?
Decrease smooth muscle tone of the prostate and bladder
What can be added to alpha blockers in the treatment of BPH?
5 - alpha- reductase inhibitors
What is the mechanism of 5a reductase inhibitors in the treatment of BPH?
Decrease the conversion of testosterone to dihydrotestosterone in the prostate gland - reduces side of prostate
What test can be used to assess the mobility of the spine (for example, with someone in ankylosing spondylitis)?
Schober’s test
What is the most common cause of osteomyelitis?
S. Aureus
What is the most common cause of osteomyelitis in patients with sickle cell anaemia?
Salmonella species
What is an X ray sign of Ewing’s sarcoma?
Onion skin appearance of periosteum
What is an X ray sign of osteosarcoma?
Sunray spiculation
What is an X ray sign of chondrosarcoma?
Popcorn calcifications
In SLE, what levels would CRP and ESR be?
CRP normal ESR raised
What are gout crystals made of?
Monosodium urate
What shape are gout crystals?
Long needle shape and are negatively bifringent under plane polarised light
What are pseudogout crystals made of?
Calcium pyrophosphate crystals
What shape are pseudogout crystals?
Rhomboid shaped and are positively bifringent under plane polarised light
What is sign on the X ray in Rheumatoid Arthritis?
L-oss of joint space
E-rosions
S-oft tissue swelling
S-oft bones (osteopenia)
Risk factors for osteoporosis?
S-teroids
H-yperthyroid/parathyroid
A-lcohol and smoking
T-hin - low BMI
T-estosterone decrease
E-arly menopause
R-enal or liver failure
E-rosive / inflammatory bone disease
D-ietary calcium decrease
What is Paget’s disease of bone?
A disease of increased uncontrolled bone turnover
What is a typical presentation for Paget’s?
Older male, with bone pain and raised ALP. Can also cause deafness, skull thickening, fractures and osteosarcoma
What would blood tests show in Paget’s?
Raise ALP
Normal calcium and phosphate
What disease is most associated with cANCA?
Wegener’s granulomatosis
What is Wegener’s granulomatosis?
A disorder that causes inflammation of the blood vessels in the nose, sinuses, throat, lungs and kidney
What are some symptoms of Wegener’s granulomatosis?
- Renal, respiratory and nasopharyngeal symptoms
- Systemic symptoms
- Saddle nose deformity
What is the most specific antibody for SLE?
Anti ds DNA
What is a sensitive antibody test for SLE?
Anti nuclear antibodies
What are some important histories to take when considering antiphospholipid syndrome?
Pregnancy issues
Livido reticularis
What is the first line drug treatment for neuropathic pain?
Amitryptyline
What are the symptoms of common peroneal nerve palsy?
- Foot drop
- Weakness of toe extensors
- Ankle eversion affected
What are the symptoms of L5 radiculopathy?
- Foot drop
- Weakness of toe extensors
- Ankle inversion affected
What is the first line treatment for trigeminal neuralgia?
Carbamazepine
What is the treatment for migraines?
NSAIDS / Aspirin for acute relief
Triptans
Prophylaxis: Propanolol, Amitryptyline, Topiramate, BoTox type A
What investigations are used in a diagnosis of dementia?
Confusion screen first to rule out any other causes then:
- Mini mental state assessment
- MRI head (Wider sulci and ventricles, less gyri)
- CSF analysis (amyloid and tau proteins)
What is the pathophysiology of vascular dementia?
Reduced blood flow to the brain damages and kills cells resulting in cognitive impairment
What is a hallmark of vascular dementia?
Stepwise deterioration
What is the pathophysiology of Alzheimer’s dementia?
Extracellular beta-amyloid plaques deposit cause signalling obstruction and inflammation around vessels
Intracellular tau protein neurofibrillary tangles obstruct neuron signalling by reducing microtubule stability, causing induced apoptosis
What is Lewy Body dementia?
Abnormal protein deposits (Lewy bodies) affect chemical signalling in the brain
What are hallmarks of Lewy Body dementia?
Parkinsonism’s
Sleep disturbance
Visual hallucinations
What is Huntingdon’s disease?
An autosomal dominant neurodegenerative condition that causes loss of neurones in the caudate nucleus and putamen of the basal ganglia, resulting in a loss of GABA and ACh
What are some symptoms of Huntingdon’s?
- Hyperkinesia
- Chorea
- Depression
- Dementia
What is myasthenia gravis?
An autoimmune condition where AChR antibodies attack the post synaptic part of the neuromuscular junction, impacting muscle movement and contraction
What are the symptoms of myasthenia gravis?
1.Weakness
2. Fatigability of ocular (ptosis), bulbar (dysphagia, dysarthria) and proximal limbs
3. Improves after rest
What is the treatment for myasthenia gravis?
- Pyridostigmine - to reduce the muscle weakness
- Prednisolone - to inhibit immune system
- Thymectomy - because of high increased risk in thymus cancers
What is Guillain-Barre syndrome?
An autoimmune acute inflammatory demyelinating attack of the PNS which can cause acute onset motor paralysis
When does Guillain-Barre syndrome tend to occur?
A few weeks after a previous infection, especially respiratory or GI
What are the symptoms of Guillain-Barre?
Similar to myasthenia gravis but acute
Also can be associated with difficulty breathing, paraesthesia and cramping pain
What is the treatment for Guillain-Barre?
Intravenous Immunoglobulin
What is the difference between a complex partial seizure and a simple partial seizure?
A simple partial seizure would not affect awareness or have post-ictal symptoms
What are the signs of upper motor neurone lesion?
- Increased muscle tone
- No muscle atrophy
- Hyperreflexia
- Spasticity
What are the signs of lower motor neurone lesion?
- Decreased muscle tone
- Muscle atrophy
- Hyporeflexia
- Fasciculations
What are the symptoms of cerebellar pathology?
DASHING
Dysdiadochokinesis (inability to perform rapid alternating muscle movements)
Ataxia
Slurred speech
Hypotonia
Intention tremor
Nystagmus
Gait abnormality
Why is lumbar puncture contraindicated with raised ICP?
With raised ICP, initially brain removes CSF from ventricles into spinal cord in order to offset pressure
Once the tumour becomes large enough there comes a point where no more CSF can be removed leading to a rapid rise in ICP
A lumbar puncture has the potential to cause rapid coning (brain herniation) and brainstem death
What does damage to the radial nerve cause?
- Inability to open the fist
- Inability to extend the wrist (wrist drop)
What does damage to the median nerve cause?
- Affects precision grip muscles (“Can’t open jam jar”)
- Wasting of thenar eminence
What does damage to the ulnar nerve cause?
- Ulnar claw
- Inability to cross fingers in a good luck sign
What does damage to the axillary nerve cause?
- Weakness in shoulder abduction
Which gene is mutated in cystic fibrosis?
CFTR gene
Transmembrane Conductance Regulator Gene
What is the pathophysiology of cystic fibrosis?
Mutated CFTR gene causes dysregulation of salt and fluid movement across membranes
This leads to significantly thickened secretions affecting respiratory, GI and reproductive symptoms
What is rifampicin used for?
Tuberculosis
What are some potential side effects of rifampicin?
Red secretions
If a patient’s asthma was not improving / getting worse, what would your first action be?
Check inhaler adherence and technique before increasing dose or adding drug
What would be the next drug added to salbutamol?
Increase the dose of inhaled corticosteroid (eg. Budesonide)
What is the most common form of lung cancer?
Adenocarcinoma
What is the most common lung cancer in non smokers?
Adenocarcinoma
What is a sign of bronchiectasis on CT?
Signet ring sign
What is FEV1?
Forced expiratory volume in 1 second - The maximum amount of air that a patient can forcibly expel during the first second following maximal inhalation
What is FVC?
Forced vital capacity - the amount of air that can be forcibly exhaled from your lungs after taking the deepest breath possible
What is an obstructive lung disease?
Difficulty expiring air
One where FEV1/FVC < 0.7
Name 4 obstructive lung diseases
- Asthma
- COPD
- Bronchiectasis
- Bronchiolitis
What is a restrictive lung disease?
Lungs unable to fully expand and fill
Reduced FVC
Name restrictive lung diseases
- Pulmonary fibrosis
- Sarcoidosis
- Tuberculosis
What is CURB-65?
A score to calculate the severity of community acquired pneumonia
What 5 things are in CURB-65 score?
Confusion
Urea > 7mmol/L
Resp rate > 30/min
BP <90 systolic or <60 diastolic
Age over 65
What is hyper expansion a sign of?
Obstructive lung disease
What is a common cause of communityacquired pneumonia?
Streptococcus pneumoniae
What is a common cause of hospital acquired pneumonia?
Pseudomonas aeruginosa
What group is at risk for pneumothorax?
Young males with low BMI (tall, lanky men)
Marfan’s syndrome also increases risk
In dealing with a tension pneumothorax, where does a needle thoracostomy go?
2nd intercostal space mid clavicular line large bore cannula
In a pneumothorax, which way does the trachea deviate?
Away from the affected lung
What signs support a diagnosis of tension pneumothorax?
- Tracheal deviation away from the affected lung
- Hypotension
- Hypoxia